51711772552 has 16 divisors (see below), whose sum is σ = 105774080400. Its totient is φ = 23505351120.

The previous prime is 51711772547. The next prime is 51711772561. The reversal of 51711772552 is 25527711715.

It is a junction number, because it is equal to n+sod(n) for n = 51711772499 and 51711772508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293816802 + ... + 293816977.

It is an arithmetic number, because the mean of its divisors is an integer number (6610880025).

Almost surely, 2^51711772552 is an apocalyptic number.

It is an amenable number.

51711772552 is an abundant number, since it is smaller than the sum of its proper divisors (54062307848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51711772552 is a wasteful number, since it uses less digits than its factorization.

51711772552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587633796 (or 587633792 counting only the distinct ones).

The product of its digits is 171500, while the sum is 43.

The spelling of 51711772552 in words is "fifty-one billion, seven hundred eleven million, seven hundred seventy-two thousand, five hundred fifty-two".